Context

Context(ceed::Ceed, data; mtype=MEM_HOST, cmode=USE_POINTER)

Create a CeedQFunctionContext object that allows user Q-functions to access an arbitrary data object. data should be an instance of a mutable struct. If the copy mode cmode is USE_POINTER, then the data will be preserved from the GC when assigned to a QFunction object using set_context!.

Copy mode OWN_POINTER is not supported by this interface because Julia-allocated objects cannot be freed from C.